| 437 |
Centrifugally cast (spun) ductile iron pressure pipes for water, gas and sewage |
IS 8329 : 2000 |
2010-03-01 |
QCO for Centrifugally cast (spun) ductile iron pressure pipes
|
| 438 |
Ductile iron fittings for pressure pipes for water, gas and sewage |
IS 9523 : 2000 |
2010-03-01 |
QCO for Ductile iron fittings for pressure pipes
|
| 439 |
Ferrosilicon – Specification |
IS 1110 : 1990 |
2020-11-23 |
QCO for Ferrosilicon – Specification
Amendment QCO for Ferrosilicon – Specification
|
| 440 |
Specification for Ferronickel |
IS 4409 : 1973 |
2023-01-23 |
QCO for Specification for Ferronickel
Amendment QCO for Specification for Ferronickel
|
| 441 |
Tool Steel Forgings For Metal Forming |
IS 13387 : 1992 |
2022-02-13 |
QCO for Tool Steel Forgings For Metal Forming
Amendment QCO for Tool Steel Forgings For Metal Forming
|
| 442 |
Soft Magnetic Iron Rods, Bars Flats and Sections |
IS 11947 : 1987 |
2022-02-26 |
QCO for Soft Magnetic Iron Rods, Bars Flats and Sections
Amendment QCO for Soft Magnetic Iron Rods, Bars Flats and Sections
|
| 443 |
Steel wire for mechanical springs Part-1 cold drawn unalloyed steel wire |
IS 4454 (Part 1) |
2021-11-26 |
QCO for Steel wire for mechanical springs Part-1
Amendment QCO for Steel wire for mechanical springs Part-1
|
| 444 |
Soft Magnetic Iron Strips |
IS 11946 : 1987 |
2021-08-26 |
QCO for Soft Magnetic Iron Strips
Amendment QCO for Soft Magnetic Iron Strips
|
| 445 |
Specification for Cold rolled medium, high carbon and low alloy steel strip for general engineering purposes |
IS 7226 : 1974 |
2020-02-14 |
QCO for Cold rolled steel strip
Amendment QCO for Cold rolled steel strip
|
| 446 |
Steels for High Temperature Bolting Applications – Specification |
IS 14331 : 1995 |
2020-11-14 |
QCO for Steels for High Temperature Bolting Applications
Amendment QCO for High Temperature Bolting Applications
|
| 447 |
Plain Hard-drawn Steel Wire For Pre-stressed Concrete: Part 1 Cold Drawn Stress-relieved Wire |
IS 1785 (Part 1) |
2020-02-14 |
QCO for Plain Hard-drawn Steel Wire for Pre-stressed Concrete Part 1
|
| 448 |
Plain hard-drawn steel wire for pre-stressed concrete Part 2: As drawn wire |
IS 1785 (Part 2) |
2020-02-14 |
QCO for Plain hard-drawn steel wire for pre-stressed concrete Part 2
|
| 449 |
Indented wire for Pre-stressed concrete |
IS 6003 : 2010 |
2020-02-14 |
QCO for Indented wire for Pre-stressed concrete
|
| 450 |
Uncoated stress relieved strand for Pre-stressed concrete |
IS 6006 : 2014 |
2020-02-14 |
QCO for Uncoated stress relieved strand for Pre-stressed concrete
|
| 451 |
Fusion bonded epoxy coated reinforcing bars |
IS 13620 : 1993 |
2020-02-14 |
QCO for Fusion bonded epoxy coated reinforcing bars
|
| 452 |
Uncoated Stress Relieved Low Relaxation Seven-ply Strand For Pre-stressed Concrete |
IS 14268 : 1995 |
2020-02-14 |
QCO for Uncoated Stress Relieved Low Relaxation Seven-ply Strand
|
| 453 |
Galvanized steel sheets (plain and corrugated) |
IS 277 : 2003 |
2020-02-14 |
QCO for Galvanized steel sheets (plain and corrugated)
|
| 454 |
Steel plates for pressure vessels for intermediate and high temperature service including boilers |
IS 2002 : 2009 |
2020-02-14 |
QCO for Steel plates for pressure vessels for intermediate and high temperature service including boilers
|
| 455 |
Steel plates for pressure vessels used at moderate and low temperature |
IS 2041 : 2009 |
2020-02-14 |
QCO for Steel plates for pressure vessels used at moderate and low temperature
|
| 456 |
Carbon steel cast billet ingots, billets, blooms and slabs for rolling into steel for general structural purpose |
IS 2830 : 2012 |
2020-02-14 |
QCO for Carbon steel cast billet ingots, billets, blooms and slabs for rolling into steel for general structural purpose
|
| 457 |
High strength deformed steel bars and wires for concrete reinforcement |
IS 1786 : 2008 |
2020-02-14 |
QCO for High strength deformed steel bars and wires for concrete reinforcement
|
| 458 |
Cold rolled non-oriented electrical steel sheets and strip – fully processed type (CRNO) |
IS 648 : 2006 |
2020-02-14 |
QCO for Cold rolled non-oriented electrical steel sheets and strip – fully processed type (CRNO)
|
| 459 |
Grain oriented electrical steel sheet and strip (CRGO) |
IS 3024 : 2015 |
2020-02-14 |
QCO for Grain oriented electrical steel sheet and strip (CRGO)
|
| 460 |
Oriented electrical steel sheet and strip – Semi-processed type |
IS 15391 : 2003 |
2020-02-14 |
QCO for Oriented electrical steel sheet and strip – Semi-processed type
|
